Door assembly and cooking device having the same

ABSTRACT

The present disclosure discloses a door assembly and a cooking device including the door assembly. The door assembly includes a first frame, a second frame and shielding members; the second frame fits the first frame and is provided with flanges along edges thereof, the flanges are provided with notches at corners of the first frame, and the flanges shield an outer side of edges of the first frame; and the shielding members are arranged on an outer side of the flanges and detachably fit the flanges to close the notches. The second frame is formed by cutting and bending a metal plate, and there are notches at corners of the second frame formed by the cutting and bending. When the first frame fits the second frame, the first frame is spaced apart from the second frame.

CROSS-REFERENCES TO RELATED APPLICATIONS

The present application claims benefit of Chinese Application No.202021175996.7, filed on Jun. 22, 2020, the contents of which are herebyincorporated by reference in its entirety.

FIELD

The present disclosure relates to the field of cooking appliances, andin particular to a door assembly. The present disclosure also relates toa cooking device.

BACKGROUND

This section provides only background information related to the presentdisclosure, which is not necessarily the prior art.

A cooking device (such as an oven or a steaming oven, etc.) generallyincludes a door assembly, a heating assembly, and a cabinet having acooking cavity. The door assembly is pivotally arranged on the cabinet,and the cooking cavity is opened or closed by opening or closing thedoor assembly. The door assembly includes a frame, which is formed bycutting and bending a metal plate. There is a slit at a corner of theframe, and the slit is prone to scratching the user.

In order to solve the above problems, grinding and welding are performedat the slit in the prior art to eliminate the slit. However, the processof grinding and welding the slit is complicated, which results in a lowproduction efficiency of the door assembly and and increases themanufacturing cost of the door assembly.

SUMMARY

Embodiments of the present disclosure are to at least solve the problemof how to simplify a manufacturing process of the door assembly.

One embodiment of the present disclosure proposes a door assembly, whichincludes:

a first frame;

a second frame, which fits the first frame and which is provided withflanges along edges thereof, the flanges being provided with notches atcorners of the first frame and the flanges shielding an outer side ofedges of the first frame; and

shielding members, which are arranged on an outer side of the flangesand which detachably fit the flanges to close the notches.

According to the door assembly of the present disclosure, the secondframe is formed by cutting and bending a metal plate, and there arenotches at corners of the second frame formed by the cutting andbending. When the first frame fits the second frame, the first frame isspaced apart from the second frame. A width of the flanges is largerthan or equal to a distance between the first frame and the secondframe, and the flanges shield the outer side of the edges of the firstframe. The shielding members fit the flanges to close the notches on theflanges, and preventing the notches from scratching the user. Inaddition, when the shielding members close the notches of the flanges,there is no need to perform grinding and welding operations, whichsimplifies the manufacturing process of the door assembly and improvesthe manufacturing efficiency of the door assembly, and reducing themanufacturing cost of the door assembly.

In addition, the door assembly according to the present disclosure mayalso have the following additional embodiments.

In some embodiments of the present disclosure, the shielding memberincludes:

a first plate-shaped portion, which abuts against an outer surface ofthe flange and closes the notch; and

at least one positioning portion, which is provided on the firstplate-shaped portion, and which fits a positioning hole on the flange.

In some embodiments of the present disclosure, the shielding memberfurther includes a first clamp-fit portion, the flange is provided witha second clamp-fit portion, and the first clamp-fit portion and thesecond clamp-fit portion fit each other by clamping.

In some embodiments of the present disclosure, the first clamp-fitportion is an elastic clamping joint, the second clamp-fit portion is aclamping hole communicating with the notch, and the elastic clampingjoint fits an inner wall of the clamping hole.

In some embodiments of the present disclosure, a side of the flange awayfrom the second frame is provided with a folded edge penetrated by thenotch; the folded edge and the second frame are both located on the sameside of the flange; the second frame, the flange and the folded edgeform an installation space, and the first frame is arranged in theinstallation space.

In some embodiments of the present disclosure, the shielding memberfurther includes a second plate-shaped portion connected with the firstplate-shaped portion, and the second plate-shaped portion abuts againstthe folded edge to close a position where the folded edge is penetratedby the notch.

In some embodiments of the present disclosure, the door assembly furtherincludes fasteners, the folded edges are provided with first holes, thesecond plate-shaped portion is provided with second holes arrangedcorresponding to the first holes, and the fasteners pass through thesecond holes to fit the first holes so that the shielding member isfixed.

In some embodiments of the present disclosure, the number of the firstholes is two, the two first holes are respectively arranged on bothsides of the position where the folded edge is penetrated by the notch,and the number of the second holes and the number of the fasteners areeach consistent with the number of the first holes; and/or

the fasteners are rivets.

In some embodiments of the present disclosure, the shielding member is ahigh-temperature resistant alloy member; and/or

the door assembly further includes a first glass pane, which is embeddedon the first frame; and/or

the door assembly further includes a second glass pane, which isembedded on the second frame.

Embodiments of the present disclosure provides a cooking device, whichincludes:

a door assembly, which is the door assembly as described above; and

a cabinet, which is provided with a cooking cavity, the door assemblybeing pivotally arranged on the cabinet to open or close the cookingcavity.

According to the cooking device of the present disclosure, the secondframe of the door assembly is formed by cutting and bending a metalplate, and there are notches at corners of the second frame formed bythe cutting and bending. When the first frame fits the second frame, thefirst frame is spaced apart from the second frame. A width of theflanges is larger than or equal to a distance between the first frameand the second frame, and the flanges shield the outer side of the edgesof the first frame. The shielding members fit the flanges to close thenotches on the flanges, and preventing the notches from scratching theuser. In addition, when the shielding members close the notches of theflanges, there is no need to perform grinding and welding operations,which simplifies the manufacturing process of the door assembly andimproves the manufacturing efficiency of the door assembly, and reducingthe manufacturing cost of the door assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings are only used for the purpose of illustrating theembodiments, and should not be considered as limiting the presentdisclosure. Moreover, throughout the drawings, identical parts aredenoted by identical reference signs. In the drawings:

FIG. 1 schematically shows a schematic structural view of a cookingdevice according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a door assembly of the cookingdevice shown in FIG. 1;

FIG. 3 is a schematic structural view illustrating another state of thedoor assembly shown in FIG. 2 (in which a shielding member is in aseparated state from a second frame);

FIG. 4 is an enlarged schematic view of the structure at part A of thedoor assembly shown in FIG. 3;

FIG. 5 is a schematic structural view of a shielding member of the doorassembly shown in FIG. 3;

FIG. 6 is a schematic structural view of the shielding member shown inFIG. 5 from another perspective; and

FIG. 7 is a cross-sectional view taken along line B-B of the shieldingmember shown in FIG. 6.

REFERENCE SIGNS

100: cooking device;

10: door assembly;

11: first frame; 12: second frame; 121: folded edge; 1211: positioninghole; 1212: overlapping structure; 122: flange; 1221: first hole; 123:notch; 1231: second clamping portion; 13: shielding member; 131: firstplate-shaped portion; 132: second plate-shaped portion; 1321: secondhole; 133: positioning portion; 134: first clamping portion; 14: firstglass pane; 15: second glass pane;

20: cabinet.

DETAILED DESCRIPTION OF THE DISCLOSURE

Hereinafter, exemplary embodiments of the present disclosure will bedescribed in more detail with reference to the accompanying drawings.Although the exemplary embodiments of the present disclosure are shownin the drawings, it should be understood that the present disclosure maybe implemented in various forms and should not be limited by theembodiments set forth herein.

It should be understood that the terms used herein are only for thepurpose of describing specific exemplary embodiments, and are notintended to be limitative. Unless clearly indicated otherwise in thecontext, singular forms “a”, “an”, and “said” as used herein may alsomean that plural forms are included. Terms “include”, “comprise”,“contain” and “have” are inclusive and therefore indicate the existenceof the stated features, steps, operations, elements and/or components,but do not exclude the existence or addition of one or more otherfeatures, steps, operations, elements, components, and/or combinationsthereof. The method steps, processes, and operations described hereinshould not be interpreted as requiring them to be executed in thespecific order described or illustrated, unless the order of executionis clearly indicated. It should also be understood that additional oralternative steps may be used.

Although terms “first”, “second”, “third” and the like may be usedherein to describe multiple elements, components, regions, layers and/orsections, these elements, components, regions, layers and/or sectionsshould not be limited by these terms. These terms may only be used todistinguish one element, component, region, layer or section fromanother region, layer or section. Unless clearly indicated in thecontext, terms such as “first”, “second” and other numerical terms donot imply an order or sequence when they are used herein. Therefore, thefirst element, component, region, layer or section discussed below maybe referred to as a second element, component, region, layer or sectionwithout departing from the teachings of the exemplary embodiments.

For ease of description, spatial relative terms may be used herein todescribe the relationship of one element or feature relative to anotherelement or feature as shown in the drawings. These relative terms are,for example, “inner”, “outer”, “inside”, “outside”, “below”, “under”,“above”, “over”, etc. These spatial relative terms are intended toinclude different orientations of the device in use or operation inaddition to the orientation depicted in the drawings. For example, ifthe device in the figure is turned over, then elements described as“below other elements or features” or “under other elements or features”will be oriented as “above the other elements or features” or “over theother elements or features”. Thus, the exemplary term “below” mayinclude orientations of both above and below. The device can beotherwise oriented (rotated by 90 degrees or in other directions), andthe spatial relationship descriptors used herein will be explainedaccordingly.

As shown in FIGS. 1 to 7, according to the embodiment of the presentdisclosure, a door assembly 10 is proposed. The door assembly 10includes a first frame 11, a second frame 12, and shielding members 13.The second frame 12 fits the first frame 11, and the second frame 12 isprovided with flanges 121 along edges thereof. The flanges 121 areprovided with notches 123 at corners of the first frame 11. The flanges121 shield an outer side of edges of the first frame 11. The shieldingmembers 13 are provided on an outer side of the flanges 121 anddetachably fit the flanges 121 to close the notches 123.

In one embodiment, the second frame 12 is formed by cutting and bendinga metal plate, and the notches 123 formed by cutting and bending existat corners of the second frame 12. When the first frame 11 fits thesecond frame 12, the first frame 11 and the second frame 12 are spacedapart, and a width of the flange 121 is larger than or equal to adistance between the first frame 11 and the second frame 12. Moreover,the flanges 121 shield the outer side of the edges of the first frame11. The shielding members 13 fit the flanges 121 to close the notches123 on the flanges 121, and preventing the notches 123 from scratchingthe user. In addition, there is no need to perform grinding and weldingoperations when the shielding members 13 close the notches 123 of theflanges 121, which simplifies the manufacturing process of the doorassembly 10, so that the manufacturing efficiency of the door assembly10 is improved, and the manufacturing cost of the door assembly 10 isreduced.

It should be pointed out that the first frame 11 and the second frame 12are both rectangular structures, and the first frame 11 and the secondframe 12 are assembled with each other to form a door structure, whichis pivotally connected to a cabinet 20 of a cooking device 100 throughconnectors. The door structure is opened or closed so that a cookingcavity of the cabinet 20 is opened or closed. In the presentapplication, both corners at the top of the second frame 12 (i.e., aside of the second frame 12 away from a surface on which the cookingdevice 100 is placed) have the notch 123, and the shielding member 13 isprovided at each of the positions of the two notches 123, andeffectively preventing the notches 123 from scratching the user.

In addition, an overlapping structure 1212 is provided on the flanges121 on both sides of the notches 123 respectively, and the overlappingstructures 1212 on both sides are overlapped with each other, andensuring the strength of the body of the second frame 12 at the notches123 and avoiding deformation positions of the door assembly 10 due toheat and other factors.

It is further understood that as shown in FIGS. 3 to 7, the shieldingmember 13 includes a first plate-shaped portion 131 and at least onepositioning portion 133. The first plate-shaped portion 131 abutsagainst an outer surface of the flange 121 and closes the notch 123. Thepositioning portion 133 is arranged on the first plate-shaped portion131, and the positioning portion 133 fits a positioning hole 1211 on theflange 121. In one embodiment, when the shielding member 13 closes thenotch 123 of the second frame 12, the positioning portion 133 of theshielding member 13 first fits the positioning hole 1211 of the flange121, to realize the positioning of the shielding member 13, and then thefirst plate-shaped portion 131 abuts against the outer surface of theflange 121, and closing the notch 123. By providing the positioningportion 133, the positioning and installation of the shielding member 13is realized, so that the first plate-shaped portion 131 can effectivelyclose the notch 123. In addition, the fit of the positioning portion 133and the positioning hole 1211 enables the shielding member 13 to bequickly installed, which effectively improves the assembly efficiencyand and reduces the manufacturing cost of the door assembly 10.

It should be pointed out that the shape of the first plate-shapedportion 131 coincides with the shape of the notch 123. At the same time,a size of the first plate-shaped portion 131 is larger than a size ofthe notch 123. When the first plate-shaped portion 131 shields the notch123, a shielding effect of the shielding member 13 on the notch 123 canbe effectively ensured. When the shielding member 13 is manufactured, anedge of the first plate-shaped portion 131 is blunted (for example beingrounded, etc.), to avoid scratching the user due to the sharp edge ofthe first plate-shaped portion 131.

In addition, the positioning portion 133 may be provided in plural, andpositioning portions 133 are arranged at intervals. The flange 121 isprovided with the positioning holes 1211 having the same number as thepositioning portions 133. The positioning portions 133 and thepositioning holes 1211 are arranged corresponding to each other. The fitof the positioning portions 133 and the positioning holes 1211 furtherimproves the installation accuracy of the shielding member 13 andimproves the quality of the door assembly 10.

In addition, in the present application, the positioning portions 133are positioning posts, which are provided on an end face of the firstplate-shaped portion 131 that faces the flange 121. The positioningposts may be integrally formed with the first plate-shaped portion 131,or may be manufactured separately from the first plate-shaped portion131 before assembly. The positioning posts are inserted into thepositioning holes 1211 to realize the positioning and installation ofthe shielding member 13. The fitting structure of the positioning postsand the positioning holes 1211 is simple, which facilitates assembly andfurther improves the efficiency of assembly, and further reduces themanufacturing cost.

In other embodiments, the positioning portion 133 is a positioningbracket, which is inserted into the positioning hole 1211, to realizethe positioning and installation of the shielding member 13. Thepositioning bracket is lightweight, and lowering the mass of the doorassembly 10, reducing the force at the connection position of the doorassembly 10 and the cabinet 20 of the cooking device 100, and ensuringthe stability of the connection between the door assembly 10 and thecabinet 20.

Further, as shown in FIGS. 4 to 7, the shielding member 13 furtherincludes a first clamp-fit portion 134, the flange 121 is provided witha second clamp-fit portion 1231, and the first clamp-fit portion 134 andthe second clamp-fit portion 1231 fit each other by clamping. In oneembodiment, when the shielding member 13 is installed, the positioningportion 133 is inserted into the positioning hole 1211 to realize thepositioning of the shielding member 13, and then the first plate-shapedportion 131 abuts against the flange 121. When the first plate-shapedportion 131 abuts against the flange 121, the first clamp-fit portion134 and the second clamp-fit portion 1231 fit each other, to realize thefixing of the shielding member 13. The fit of the first clamp-fitstructure and the second clamp-fit structure enables a rapid assembly ofthe shielding member 13, so that the assembly efficiency of theshielding member 13 is further improved, the assembly efficiency of thedoor assembly 10 is further improved, and the manufacturing cost of thedoor assembly 10 is further reduced.

It should be pointed out that the first clamp-fit structure is providedon the end face of the first plate-shaped portion 131 that faces theflange 121, and is spaced apart from the positioning portion 133. Whenthe shielding member 13 is assembled, the first plate-shaped portion 131moves in a direction approaching the flange 121, the positioning portion133 is gradually inserted into the positioning hole 1211, and the firstclamp-fit structure contacts and fits the second clamp-fit structure.When the first plate-shaped structure abuts against the flange 121, thefirst clamp-fit structure and the second clamp-fit structure fit inplace, so that the positioning and assembling of the shielding member 13are performed simultaneously, and the assembling efficiency of the doorassembly 10 is further improved.

Further, as shown in FIGS. 4 to 7, the first clamp-fit portion 134 is anelastic clamping joint, the second clamp-fit portion 1231 is a clampinghole communicating with the notch 123, and the elastic clamping jointfits an inner wall of the clamping hole. In one embodiment, as shown inFIG. 7, the elastic clamping joint has a U-shaped structure. One sidewall of an open end of the U-shaped structure is connected to the endface of the first plate-shaped portion 131 that faces the flange 121,and the other side wall of the U-shaped structure is suspended. When theshielding member 13 is installed, the first plate-shaped portion 131moves close to the flange 121, and the positioning portion 133 isgradually inserted into the positioning hole 1211. The suspended sidewall of the U-shaped structure abuts against the inner wall of theclamping hole and undergoes elastic deformation. The fit of thepositioning portion 133 and the positioning hole 1211 as well as the fitof the elastic clamping joint and the clamping hole realize thepositioning, installation and fixing of the shielding member 13. Theoverall structure is simple and easy to assemble, so that the assemblyefficiency is further improved, and reducing the manufacturing cost ofthe door assembly 10.

In other embodiments, the first clamp-fit portion 134 is a first buckle,and the second clamp-fit portion 1231 is a second buckle. The fit of thefirst buckle and the second buckle realizes the installation and fixingof the shielding member 13, and the buckle structure has a high fixingstrength, which effectively ensures the stability of the assembly of theshielding members 13.

Further, as shown in FIGS. 3 and 4, a side of the flanges 121 that isaway from the second frame 12 is provided with folded edges 122penetrated by the notches 123, and the folded edges 122 and the secondframe 12 are both located on the same side of the flanges 121. Thesecond frame 12, the flanges 121 and the folded edges 122 form aninstallation space, and the first frame 11 is arranged in theinstallation space. In one embodiment, the second frame 12 and thefolded edges 122 are respectively arranged on both sides of the flanges121; the folded edges 122 and the second frame 12 both extend toward thesame side of the flanges 121; and the folded edges 122, the flanges 121,and the second frame 12 jointly form a box-shaped installation space,which communicates to the outside through one side of the folded edges122. The first frame 11 is arranged in the installation space. The edgesof the first frame 11 are arranged along the positions where the foldededges 122 and the flanges 121 are coupled. When the first frame 11 isinstalled and fixed, the first frame 11 closes an opening of theinstallation space on the side of the folded edges 122. The first frame11 constitutes one side face of the door assembly 10, the second frame12 constitutes the other side face of the door assembly 10, and theflanges 121 define the width of the door assembly 10. By arranging thefirst frame 11 in the installation space, a concealed installation ofthe edges of the first frame 11 is realized, which prevents the edges ofthe first frame 11 from scratching the user and improves the safety ofthe user during use.

Further, as shown in FIGS. 4, 5, and 7, the shielding member 13 furtherincludes a second plate-shaped portion 132 connected to the firstplate-shaped portion 131, and the second plate-shaped portion 132 abutsagainst the folded edge 122, so that the position where the folded edge122 is penetrated by the notch 123 is closed. In one embodiment, on bothsides of the notch 123, the flanges 121 are provided at the positionwhere the folded edge 122 is penetrated by the notch 123, and eachflange 121 is provided with the folded edge 122. When the shieldingmember 13 is assembled, the shielding member 13 moves close to theflange 121, the positioning portion 133 is inserted into the positioninghole 1211, the first clamp-fit structure fits the second clamp-fitstructure, and when the first plate-shaped portion 131 abuts against theflange 121, the second plate-shaped portion 132 abuts against the foldededge 122 and closes the position where the folded edge 122 is penetratedby the notch 123, which further avoids a situation that the notch 123scratches the user.

It should be noted that an included angle between the folded edge 122and the flange 121 is a right angle, and an included angle between thesecond plate-shaped portion 132 and the first plate-shaped portion 131is also a right angle. The shape of the second plate-shaped portion 132is consistent with the shape of the notch 123, and the size of thesecond plate-shaped portion 132 is larger than the size of the notch 123on the folded edge 122, so that the first plate-shaped portion 131 andthe second plate-shaped portion 132 can effectively close the notch 123.In addition, when the shielding member 13 is manufactured, the edge ofthe second plate-shaped portion 132 is blunted (for example beingrounded, etc.), to avoid scratching the user due to the sharp edge ofthe second plate-shaped portion 132.

Further, the door assembly 10 further includes fasteners (not shown),the folded edges 122 are provided with first holes 1221, and the secondplate-shaped portion 132 is provided with second holes 1321. The secondholes 1321 and the first holes 1221 are arranged corresponding to eachother, and the fasteners pass through the second holes 1321 to fit thefirst holes 1221 so that the shielding member 13 is fixed. In oneembodiment, the fasteners pass through the second holes 1321 to fit thefirst holes 1221, and connecting the shielding member 13 with the secondframe 12. By providing the fasteners, the shielding member 13 is furtherfixed, so that the fixing strength of the shielding member 13 is furtherensured to achieve the closing effect of the notch 123.

Further, as shown in FIGS. 4 and 5, the number of the first holes 1221is two, and the two first holes 1221 are separately arranged on bothsides of the position where the folded edge 122 is penetrated by thenotch 123. The number of the second holes 1321 and the number offasteners are each consistent with the number of the first holes 1221.In one embodiment, the notch 123 is provided on the flanges 121 at thecorner of the second frame 12 and penetrates the folded edges 122. Thefolded edges 122 are provided with the first holes 1221 on both sides ofthe notch 123, and the second plate-shaped portion 132 is provided withthe second holes 1321 at positions corresponding to the first holes1221. Through the arrangement of multiple fasteners, a multi-positionfixing of the shielding member 13 is realized, and the fixing strengthand stability of the shielding member 13 are further increased.Therefore, a situation that the shielding member 13 becomes loose oreven falls off is effectively avoided.

In one embodiment, the fasteners are rivets. The rivets pass through thesecond holes 1321 and are riveted to the first holes 1221 to realize thefixing of the shielding member 13. The connection and fixation method byrivets has high connection strength and good stability. In addition, theassembly is simple and convenient, which can effectively improve theassembly efficiency, and reducing the manufacturing cost of the doorassembly 10.

In other embodiments, the fasteners are screws. The screws pass throughthe second holes 1321 and are threaded to the first holes 1221 torealize the fixation of the shielding member 13. The screw connection isconvenient to disassemble and facilitates the maintenance of the doorassembly 10.

Further, the shielding member 13 is a high-temperature resistant alloymember. In one embodiment, the notch 123 is located at the corner of thesecond frame 12, and the alloy member (such as zinc alloy or aluminumalloy, etc.) has a high strength, which effectively ensures the overallstrength of the second frame 12. At the same time, the alloy member hashigh-temperature resistant performance. Therefore, the influence of thehigh temperature of the cooking device 100 on the shielding member 13(for example, deformation, etc.) is avoided, and the shielding effect ofthe shielding member 13 on the notch 123 is ensured.

In other embodiments, the shielding member 13 is a ceramic member, whichhas poor thermal conductivity, and effectively avoiding the adverseeffect of high temperature on the shielding member 13 and ensuring theshielding effect of the shielding member 13 on the notch 123.

In one embodiment, as shown in FIGS. 2 and 3, the door assembly 10further includes a first glass pane 14, and the first glass pane 14 isembedded on the first frame 11. In one embodiment, the first glass pane14 is embedded on the first frame 11. When the door assembly 10 is usedin the cooking device 100, the door assembly 10 is closed, and the firstframe 11 and the first glass pane 14 isolate the cooking cavity from theoutside. The user can observe the food in the cooking cavity through thefirst glass pane 14, to know about a cooking state of the food in atimely and effective manner, and improving the user experience.

In one embodiment, as shown in FIG. 1, the door assembly 10 furtherincludes a second glass pane 15, and the second glass pane 15 isembedded on the second frame 12. In one embodiment, the second glasspane 15 is embedded on the second frame 12, and the second glass pane 15is spaced apart from the first glass pane 14. When the door assembly 10is used in the cooking device 100, the door assembly 10 is closed, andthe first glass pane 14 isolates the cooking cavity from the outside.The user can observe the food in the cooking cavity through the secondglass pane 15 and the first glass pane 14, to know about the cookingstate of the food in a timely and effective manner, and improving theuser experience. In addition, the first glass pane 14 and the secondglass pane 15 are arranged at an interval, which can further reduce theheat transfer between the cooking cavity and the outside, to prevent thehigh temperature in the cooking cavity from threatening the safety ofthe user.

It should be understood that the first glass pane 14 is a first temperedglass pane, which ensures the strength of the first glass pane 14 andavoids the influence of high temperature or external impact on the firstglass pane 14. In addition, the second glass pane 15 is a secondtempered glass pane, which ensures the strength of the second glass pane15 and avoids the influence of high temperature or external impact onthe second glass pane 15.

The present disclosure also proposes a cooking device 100. As shown inFIGS. 1 to 7, the cooking device 100 includes a door assembly and acabinet 20. The door assembly is the door assembly 10 as describedabove, the cabinet 20 is provided with a cooking cavity, and the doorassembly 10 is pivotally arranged on the cabinet 20 to open or close thecooking cavity.

In one embodiment, the second frame 12 of the door assembly 10 is formedby cutting and bending a metal plate, and there are notches 123 atcorners of the second frame 12 formed by the cutting and bending. Whenthe first frame 11 fits the second frame 12, the first frame 11 isspaced apart from the second frame 12. A width of the flanges 121 islarger than or equal to a distance between the first frame 11 and thesecond frame 12, and the flanges 121 shield the outer side of the edgesof the first frame 11. The shielding members 13 fit the flanges 121 toclose the notches 123 on the flanges 121, and preventing the notches 123from scratching the user. In addition, when the shielding members 13close the notches 123 of the flanges 121, there is no need to performgrinding and welding operations, which simplifies the manufacturingprocess of the door assembly 10 and improves the manufacturingefficiency of the door assembly, and reducing the manufacturing cost ofthe door assembly.

In addition, the above cooking device is an oven or a steaming oven,etc. For the structures of various other parts of the cooking device,reference may be made to the prior art, and a detailed description isomitted herein.

What is claimed is:
 1. A door assembly, comprising: a first frame; asecond frame, which fits the first frame and which is provided withflanges along edges thereof, the flanges being provided with notches atcorners of the first frame and the flanges shielding an outer side ofedges of the first frame; and shielding members, which are arranged onan outer side of the flanges and which detachably fit the flanges toclose the notches.
 2. The door assembly according to claim 1, whereinthe shielding member comprises: a first plate-shaped portion, whichabuts against an outer surface of the flange and closes the notch; andat least one positioning portion, which is provided on the firstplate-shaped portion, and which fits a positioning hole on the flange.3. The door assembly according to claim 2, wherein the shielding memberfurther comprises a first clamp-fit portion, the flange is provided witha second clamp-fit portion, and the first clamp-fit portion and thesecond clamp-fit portion fit each other by clamping.
 4. The doorassembly according to claim 3, wherein the first clamp-fit portion is anelastic clamping joint, the second clamp-fit portion is a clamping holecommunicating with the notch, and the elastic clamping joint fits aninner wall of the clamping hole.
 5. The door assembly according to claim2, wherein a side of the flange away from the second frame is providedwith a folded edge penetrated by the notch; the folded edge and thesecond frame are both located on the same side of the flange; the secondframe, the flange and the folded edge form an installation space, andthe first frame is arranged in the installation space.
 6. The doorassembly according to claim 5, wherein the shielding member furthercomprises a second plate-shaped portion connected with the firstplate-shaped portion, and the second plate-shaped portion abuts againstthe folded edge to close at a position where the folded edge ispenetrated by the notch.
 7. The door assembly according to claim 6,wherein the door assembly further comprises fasteners, the folded edgesare provided with first holes, the second plate-shaped portion isprovided with second holes arranged corresponding to the first holes,and the fasteners pass through the second holes to fit the first holesso that the shielding member is fixed.
 8. The door assembly according toclaim 7, wherein a number of the first holes is two, two first holes arerespectively arranged on both sides of the position where the foldededge is penetrated by the notch, and a number of the second holes and anumber of the fasteners are each consistent with a number of the firstholes; and the fasteners are rivets.
 9. The door assembly according toclaim 1, wherein the shielding member is a high-temperature resistantalloy member; and the door assembly further comprises a first glasspane, which is embedded on the first frame; and the door assemblyfurther comprises a second glass pane, which is embedded on the secondframe.
 10. A cooking device, comprising: a door assembly, comprising: afirst frame; a second frame, which fits the first frame and which isprovided with flanges along edges thereof, the flanges being providedwith notches at corners of the first frame and the flanges shielding anouter side of edges of the first frame; and shielding members, which arearranged on an outer side of the flanges and which detachably fit theflanges to close the notches; and a cabinet, which is provided with acooking cavity, the door assembly being pivotally arranged on thecabinet to open or close the cooking cavity.